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921  Bitcoin / Bitcoin Discussion / Re: Bitcoin will be junk/trash after ban in 2 big countries on: June 10, 2019, 09:55:34 AM
Bitcoin is bigger that any "country" and no one can "ban" you from using bitcoin where there is a will there is a way.
I actually think that them banning it will push more people to adopt it. 

They again recently people in china were shown a picture of tank man.. none of them knew who he was or knew it even happened..
Suppose that's china for you.
922  Bitcoin / Development & Technical Discussion / Remove Of AES-128 Code on: June 10, 2019, 09:47:03 AM
I have been keeping eyes on the taproot development over on git and noticed this edit to the code.

Remove unused AES-128 code
https://github.com/sipa/bitcoin/commit/edc68d40e9689f74f4cdfba010691e9811786086

I wanted to know more about this removal and why some parts have been left and some have been removed also the explanation of the remove leave much to the imagination.

after looking back at some of the earlier code base it seems this feature was used in development for derivation path?

http://btc.yt/lxr/satoshi/ident?v=0.3.23&_i=SetKeyFromPassphrase&%21v=0.5.2

Code:
CCrypter::SetKeyFromPassphrase(const SecureString& strKeyData, const std::vector<unsigned char>& chSalt, const unsigned int nRounds, const unsigned int nDerivationMethod)

Why remove this code?
What effect will remove have (i.e what will the remove of the code effect or stop the use of)

Thanks  Wink
923  Bitcoin / Project Development / Re: Can we rent out the site users data? (emails and names only) on: June 09, 2019, 10:30:35 PM
I would say this is bad practice. 
If you are no longer in business and you are closed you should really remove sensitive user information.

Also it would depend on the terms and condition when users signed up if you told them you would pass there info onto other party's if not you will not be able to use the data in the capacity your asking.

You should also be aware of selling the info to scammers you may just end up having your customers flooded with spam or phishing links.

My advice would be to delete the data if it is of no further use to your project.
924  Bitcoin / Development & Technical Discussion / Re: Collection of 18.509 found and used Brainwallets on: June 09, 2019, 11:27:26 AM
The real issues is the weak PK values here and education on how to create secure keys.
I tested lot's of the tools that are available out there even going as far as to parse the entire blockchain into MySQL table while running ABE and BF and a few other scanners I have there are still 100's of un-secure wallets out there waiting to be picked up by the sweepers (just for the record I don't sweep funds and never will.)

But it's quite a concern that many people seem to have funds laying out there which any competent person with python and a word list could find.
I also ran some checking on the old style electrum seeds with a "modified" word list and have had some wallets return with funds highest was around 0.15 BTC.

I am unable to post the results as the wallets seems to be active.
925  Economy / Scam Accusations / Re: 10,000 $ Scam, please advise. on: June 02, 2019, 05:07:58 PM
Contact the police and give them the information.
There is no way to recover the funds.

You can post further information about the scam to stop others falling victim to this scam that would be helpful.


926  Other / Off-topic / Re: Need help for new Bitcoin Project ... on: June 02, 2019, 05:01:07 PM
Nice idea just watch for fake services the last thing you want it to advertise fake listings that may lead to visitors being scammed.
Do you have a vetting procedure in place to vet each application?

I do think a new updated list of places to buy with bitcoin is a very good idea but take note there any many scams out there that may take the cheap advertising and just run with customer funds.

I look forward to seeing updates on this.
927  Bitcoin / Development & Technical Discussion / Re: Erlay on: June 02, 2019, 04:40:33 PM
So let me get this straight the idea basically instead of announcing every transaction to to all the peers on the network the transaction are only sent directly over a small number of connections as periodic time-frames?
If transactions are only being broadcast to a small number of peers then relayed on later on is this not just another bottle neck waiting to happen?

It's like saying lets not open all the door's to let everyone in at once lets just open the side door and let "select" nodes in.

From where it stands now bitcoin really is moving quickly towards this central system that seems to be benefiting the few rather than the whole. (just sayin)
928  Bitcoin / Bitcoin Technical Support / Re: Dust Attack on: June 01, 2019, 10:56:03 AM
I have been seeing a lot of this happen very small inputs being sent to wallets with very high or long term static balances at first I thought it was someone trying to calculate values for some form of attack as there are multiple small inputs being sent then I thought about it as a way to track coins once they start moving but then again as loycev stated just lock them with coin control and there should be no issue.
929  Alternate cryptocurrencies / Altcoin Discussion / Re: LTC halving....then btc halving but....... on: May 31, 2019, 11:51:39 PM
I think a lot of coins that are build from the bitcoin source code may also have halving events if they did not chance specific parts of the code.

Code:
int64 static GetBlockValue(int nHeight, int64 nFees)
{
    int64 nSubsidy = 50 * COIN;

    // Subsidy is cut in half every 4 years
    nSubsidy >>= (nHeight / 210000);

    return nSubsidy + nFees;
}

As above you can see the original 50 BTC reward and the having as per bitcoin 0.6.0.source.

The best way to check to see if your fav coin has this type of event is to check there github repo for the coin and check main.cpp and search for the word "half" or "nSubsidy".
If the coin has the event it should be shown in the main.cpp file though later code revisions it may be elsewhere.

930  Bitcoin / Development & Technical Discussion / Re: Obtaining all transactions until 2013 on: May 31, 2019, 11:40:26 PM
If you start to download the blockchain you can use something like bitcoin abe to parse the chain into a database.

I have started on a small guide on how to set this up.

Code:
				    SETUP

 :Required:

Ubuntu, MySQL Python, MySQL Client, MySQL Server, Python, Python2, Blockchain,

Downloading the bitcoin blockchain two options.  

1. Download & Install bitcoin core wallet and sync with network


################################################################################

Install Python MySQL


$ sudo apt-get install python-mysqldb

   Install MySQL Client & Server

$ sudo apt-get install mysql-client mysql-server

To configure the MySQL instance with InnoDB engine support.  
If you installed with Debian/Ubuntu then InnoDB is enabled by default.  
To check for InnoDB support, issue "SHOW ENGINES" and look in the output
for "InnoDB" with "YES" next to it.  If "skip-innodb" appears in the server
configuration (my.cnf or my.ini) then remove it and restart the server.

################################################################################

SETUP MYSQL

Log into MySQL as root (i.e: mysql -u root) and give commands.
Don't forget to change the PASSWORD

    create database abe;
    CREATE USER 'abe'@'localhost' IDENTIFIED BY 'YOUR_PASSWORD_HERE';
    grant all on abe.* to abe;

The above will

1.  Create a database called abe
2.  Create a user called abe for localhost with the password you enter above
3.  Will grant all permisions to abe for abe user


################################################################################

DOWNLOAD AND INSTALL BITCOIN-ABE

This will allow you to check getrecievedbyaddress calls quickly without being rate limited by online API checkers.

$ git clone https://github.com/bitcoin-abe/bitcoin-abe.git
cd bitcoin-abe
python setup.py install

once installed open file abe.conf
(Included is a copy of the file with section uncommented all you need to do is edit the password and DB info if you changed it)
If You use the original config file from abe you will need to follow steps below and uncomment and modify lines.

################################################################################

abe.conf GUIDE

uncomment lines 33 & 34 and update line 34 with your password / user and db info for MySQL

# MySQL example; see also README-MYSQL.txt:
dbtype MySQLdb
connect-args {"user":"abe","db":"abe","passwd":"YOUR_PASSWORD_HERE"}

Uncomment lines 57 & 58

# Specify port and/or host to serve HTTP instead of FastCGI:
port 2750
host localhost

This will open port 2750 on localhost to allow the wallet checker to connect to the API

Next scroll down to the section where datadir is listed, you must specifiy the path to the blockchain directory this path should contain the bitcoin.conf & blocks & chainstate folders.

Uncomment Lines 136 / 137 / 139 / 140
**Do not uncomment line 138 "loader"**  as we are not caling via RPC rather via the API and http request to gettecievedbyaddress + addy

datadir += [{
        "dirname": "/path/to/blockchain",
#        "loader": "rpc",    # See the comments for default-loader below.
        "chain": "Bitcoin"
      }]

################################################################################

START THE IMPORT

You can now start to load the data to abe from the blockchain run the following command from the bitcoin-abe-master dir

$ python -m Abe.abe --config abe.conf --commit-bytes 100000 --no-serve --datadir /path/to/blockchain

You should see output like:

block_tx 1 1
     block_tx 2 2
block_tx 3 3
     block_tx 4 4
block_tx 5 5
     block_tx 6 6
block_tx 7 7
     block_tx 8 8

( THIS PROCESS WILL TAKE A VERY LONG TIME POSSIBLY 2-6 DAYS DEPENDING ON YOUR SYSTEM SPEC )

You can stop the process at any time and re-start the load will continue from the last block loaded after checking the chain.
The data that is loaded can also be used to search while data in importing but only up to the latest block number processed.

Next step can be done now if you want to scan small search space or wait for full import of data before continuing.


################################################################################

CHECK MYSQL

Go back to MySQL and log in and type

mysql> use abe;

mysql> show tables;

Output will show.

+-----------------+
| Tables_in_abe   |
+-----------------+
| abe_lock        |
| block           |
| block_next      |
| block_seq       |
| block_tx        |
| block_txin      |
| chain           |
| chain_candidate |
| chain_seq       |
| chain_summary   |
| configvar       |
| datadir         |
| datadir_seq     |
| multisig_pubkey |
| orphan_block    |
| pubkey          |
| pubkey_seq      |
| tx              |
| tx_seq          |
| txin            |
| txin_detail     |
| txin_seq        |
| txout           |
| txout_approx    |
| txout_detail    |
| txout_seq       |
| unlinked_tx     |
| unlinked_txin   |
+-----------------+



################################################################################


LAUNCH BITCOIN ABE (LOCALHOST)

If you have this working you can now launch ABE from the bitcoin-abe-master dir to view the api in localhost.

$ python -m Abe.abe --config abe.conf

Open browser and navagate to: localhost:2750  

You should now see the ABE block explorer running.


################################################################################

Quicker ways to do this but if you wanted some kind of database of transaction this would be one way to host it all locally.
931  Economy / Services / Re: ✍I'm designing professional logos for the Bitcointalk community, pro bono (FREE) on: May 31, 2019, 10:57:16 AM
Hello I would love a logo and thank you for offering such a fantastic service to the community.
There are not enough good members like yourself who offer things for free.

Code:
#1 - CoinCrypt
#2 - Bitcoin Mixer
#3 - Coins, Encryption, Mixing, Secure, Privacy
#4 - Dark theme, Black, Yellow, Green, Matrix style
#5 - Ensure Your Privacy
#6 - Unsure surprise me.

Best Regards.
932  Bitcoin / Development & Technical Discussion / Re: CoinJoin: Bitcoin privacy for the real world on: May 30, 2019, 10:07:16 AM
Well deserved reward to both parties congratulations to both.
Having tested both wasabi and join market both being relatively simple to use I can see many people adopting the use of them.
933  Bitcoin / Project Development / Re: STATE SUPPORTED MINING - 0.04 - 0.055USD/KWh on: May 29, 2019, 07:31:58 PM
I found this from the kind people over at Climatescope

http://global-climatescope.org/results/md

From what it shows is there has been a steady decline in the power generation in Moldova thought this data only shows to 2017.


934  Economy / Service Announcements / Re: Mining Farm with free power Canada on: May 29, 2019, 07:13:46 PM
No you listen.

There are enough scam's here without another one popping up. 

So your being squashed now you provided no proof of facility you did not answer my question about how much power will 200 miners consume you failed to tell us how much power your facility has. 
You have not given any background information do you even know how to host 200 miners?

You are being asked open questions that any data center or mine would be able to answer regarding the power.

The fact you say it's free says it all.

Provide what is being asked and stop looking for a way round this.

Meet and greet won't stop scammers...

935  Bitcoin / Project Development / Re: Is python the best programming language for a ''faucet'' type of website? on: May 29, 2019, 07:07:07 PM
Python is a good base for building something like this. 
I did some searching and found a raven coin faucet coded in python I have not tested it though iif you are looking for some codebase to work from then I think this might be a good starting place.

https://github.com/standard-error/raven-faucet

I noticed it has a few pip requirements I have not tested this and would urge you to only use this as a reference for the code and not to use this unless you want to check all the deps it requires.
936  Economy / Service Announcements / Re: Mining Farm with free power Canada on: May 29, 2019, 06:53:09 PM
Mining it can be done ,not only with electricity . There are other ways as well.
We are trying to get people that have miners , preferably from Canada so we can meet as well

Now your talking crazy..

All mining requires electricity be that solar, wind, or whatever.
You have provided such limited information and reply I have given you red trust until proof of facility is provided.

Looks nothing more that attempt to scam miners from people.
937  Bitcoin / Project Development / Re: The Hotmine Convector-Miner. Development on the Clarke ASIC chips on: May 29, 2019, 06:52:02 PM
This is a very cool project I recall hot-mine from a few years back whatever happened with them?
Last I saw they were building some kind of boiler system with the chips is that project now finished or is this the next stage of development?

I look forward to reading more about this and keep up the good work.
938  Economy / Service Announcements / Re: Mining Farm with free power Canada on: May 29, 2019, 06:47:39 PM
Low ranking member offering to host 200 miners...
Seems like a scam..

Last I checked there was no "free" electricity in canada.
Could you also tell us how much power 200 miners use.
And how much power your facility has available?

I'm going to say this is a scam until the member provides verifiable proofs of facility.





939  Bitcoin / Project Development / Re: The BEST Bitcoin price ticker widget for Windows PC. (Recommend) on: May 29, 2019, 10:56:02 AM
Thank you for the post but I am still have concerns if you look at the report the mitre score is through the roof and it's showing hooking into other parts of the system.
The avast whitelist program is useless any script kid with $50 can buy a full encrypted virus that won't be detected by avast and by 99.5% of the AV's on virustotal.

Can you further explain the following information as you did not post the source code to your application in the crypto space being open is key and hybrid-analysis is very rarely wrong.

Code:
Spyware Found a string that may be used as part of an injection method
Persistence Writes data to a remote process
Fingerprint
Queries process information
Queries sensitive IE security settings
Queries the internet cache settings (often used to hide footprints in index.dat or internet cache)
Reads the active computer name
Reads the cryptographic machine GUID
Evasive
Marks file for deletion
Tries to sleep for a long time (more than two minutes)

Queries sensitive IE security settings

Registry Access

The analysis extracted a file that was identified as malicious

1/94 Antivirus vendors marked dropped file "BitTabSetup2.1b.2.tmp" as malicious (classified as "W32.Neshta.D")

https://www.sophos.com/en-us/threat-center/threat-analyses/viruses-and-spyware/W32~Neshta-A/detailed-analysis.aspx

[b]System Security
[/b]
Contains ability to elevate privileges

SetSecurityDescriptorDacl@advapi32.dll at 15503-5232-00409408

[b]Modifies proxy settings[/b]

"BitTab.exe" (Access type: "DELETEVAL"; Path: "HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONEMAP"; Key: "PROXYBYPASS")
"BitTab.exe" (Access type: "DELETEVAL"; Path: "HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONEMAP"; Key: "PROXYBYPASS")

Queries sensitive IE security settings

"BitTab.exe" (Path: "HKCU\SOFTWARE\MICROSOFT\INTERNET EXPLORER\SECURITY"; Key: "DISABLESECURITYSETTINGSCHECK")


I suspect this is dropping some form of spyware onto the machine the bounce back for one of them is the following..
https://www.sophos.com/en-us/threat-center/threat-analyses/viruses-and-spyware/W32~Neshta-A/detailed-analysis.aspx

there is also anti-sandbox and anti-debugger works in there which lead me to believe this has something more packed inside.

The detection in the report's are not just from taskkill but from bittab and the tmp file's it's creating.


940  Bitcoin / Development & Technical Discussion / Re: New BIP: Add OpenRPC Service Discovery To JSON-RPC Services #776 on: May 29, 2019, 10:22:19 AM
Good read I thought OpenRPC was built by the ETH team but I was unsure.
It would be nice to a set standard across the board and it may lead to more development in this area.
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